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from abc import abstractmethod
from typing import Any
from python.helpers import extract_tools, files
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from agent import Agent
class Extension:
def __init__(self, agent: "Agent|None", **kwargs):
self.agent: "Agent" = agent # type: ignore < here we ignore the type check as there are currently no extensions without an agent
self.kwargs = kwargs
@abstractmethod
async def execute(self, **kwargs) -> Any:
pass
async def call_extensions(extension_point: str, agent: "Agent|None" = None, **kwargs) -> Any:
# get default extensions
defaults = await _get_extensions("python/extensions/" + extension_point)
classes = defaults
# get agent extensions
if agent and agent.config.profile:
agentics = await _get_extensions("agents/" + agent.config.profile + "/extensions/" + extension_point)
if agentics:
# merge them, agentics overwrite defaults
unique = {}
for cls in defaults + agentics:
unique[_get_file_from_module(cls.__module__)] = cls
# sort by name
classes = sorted(unique.values(), key=lambda cls: _get_file_from_module(cls.__module__))
# call extensions
for cls in classes:
await cls(agent=agent).execute(**kwargs)
def _get_file_from_module(module_name: str) -> str:
return module_name.split(".")[-1]
_cache: dict[str, list[type[Extension]]] = {}
async def _get_extensions(folder:str):
global _cache
folder = files.get_abs_path(folder)
if folder in _cache:
classes = _cache[folder]
else:
if not files.exists(folder):
return []
classes = extract_tools.load_classes_from_folder(
folder, "*", Extension
)
_cache[folder] = classes
return classes
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